83575529 has 2 divisors, whose sum is σ = 83575530. Its totient is φ = 83575528.

The previous prime is 83575517. The next prime is 83575543. The reversal of 83575529 is 92557538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77440000 + 6135529 = 8800^2 + 2477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83575529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83575529.

It is not a weakly prime, because it can be changed into another prime (83575549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41787764 + 41787765.

It is an arithmetic number, because the mean of its divisors is an integer number (41787765).

Almost surely, 2^83575529 is an apocalyptic number.

It is an amenable number.

83575529 is a deficient number, since it is larger than the sum of its proper divisors (1).

83575529 is an equidigital number, since it uses as much as digits as its factorization.

83575529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 44.

The square root of 83575529 is about 9141.9652701156. The cubic root of 83575529 is about 437.2129778898.

Subtracting 83575529 from its reverse (92557538), we obtain a square (8982009 = 2997²).

The spelling of 83575529 in words is "eighty-three million, five hundred seventy-five thousand, five hundred twenty-nine".